The group was able to jailbreak PS Vita's 3.60 firmware through the web browser of the console, giving homebrew users complete access to the device's hardware.

Unlike the usual stability update, the official patch notes for PS Vita update 3.60 say it improves system performance quality: Main Features in System Software Update Version 3.60.

HENkaku only works with the 3.60 Vita firmware and is easy to install, allowing access to the handheld’s file system via FTP, but only lasts as long as the Vita is powered.

The guys from Team Molecule have dubbed this hack HENkaku, which apparently only works on firmware update 3.60, and are offering the latest version of its PS Vita jailbreak for free.

PS Vita jailbreak finally lets you run emulators and homebrew ... Team Molecule recommends that players using the exploit avoid updating from firmware 3.60 until it can confirm the hack still ...

PS Vita Update 3.69 Patch Notes. There isn’t a big list of changes, but when you do apply the firmware update, you’ll see that stability and performance has apparently been improved.